Following some commands and checks for you troubleshoot a Kubernetes installation. Checking the installation Check if you are able to … More
Tag: nuaware
[Docker] – Using –build-arg to use safely confidential information to build docker images
In this post, we will do an example by using the flag –build-arg to build the image with a piece of … More
[Kubernetes] – How to create a Secret with base64 encode values? Is it safe to store confidential info?
The following example will show how to create a secret with base64 encode values. In this example, the values in … More
[Kubernetes] – Using port-forward to expose applications for debugging purposes
The command kubectl port-forwardallow us to expose a port. When it should be used? It is the ideal solution for … More
Why is not safe to use confidential data in the containers environment variables?
Remember that containers are just a “process”. Then, it means that the values of the environment variables can be found … More
What are the most useful Kubernetes Resources for developers?
Following a diagram to check the most useful k8s resources for developers. Reference: https://www.oreilly.com/library/view/kubernetes-patterns/9781492050278/ch01.html Understanding the mainly Resources Following some … More
Understanding Kubernetes Components Architecture in one shot
Following am an image to illustrate the Kubernetes Components Architecture and help you with. NOTE: For a further understanding see Kubernetes … More
How to have kubectl auto-completion in MacOS X?
If you try to follow the steps in the k8s docs for a MaOS environment you will see that it will … More
How to getting started with Kubernetes?
From where do I start learning Kubernetes? How to learn Kubernetes? Following the steps that I’d like to recommend to … More
[Docker] – Understanding Docker Container Networking
Docker creates automatically 3 networks as follows. $ docker network ls NETWORK ID NAME … More